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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:39:57 +0000
commitdc50eab76b709d68175a358d6e23a5a3890764d3 (patch)
treec754d0390db060af0213ff994f0ac310e4cfd6e9 /Documentation/ABI/testing/sysfs-bus-cxl
parentAdding debian version 6.6.15-2. (diff)
downloadlinux-dc50eab76b709d68175a358d6e23a5a3890764d3.tar.xz
linux-dc50eab76b709d68175a358d6e23a5a3890764d3.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-cxl')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-cxl30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index 087f762ebf..e76c360060 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -178,6 +178,21 @@ Description:
hardware decoder target list.
+What: /sys/bus/cxl/devices/portX/decoders_committed
+Date: October, 2023
+KernelVersion: v6.7
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) A memory device is considered active when any of its
+ decoders are in the "committed" state (See CXL 3.0 8.2.4.19.7
+ CXL HDM Decoder n Control Register). Hotplug and destructive
+ operations like "sanitize" are blocked while device is actively
+ decoding a Host Physical Address range. Note that this number
+ may be elevated without any regionX objects active or even
+ enumerated, as this may be due to decoders established by
+ platform firwmare or a previous kernel (kexec).
+
+
What: /sys/bus/cxl/devices/decoderX.Y
Date: June, 2021
KernelVersion: v5.14
@@ -369,6 +384,21 @@ Description:
provided it is currently idle / not bound to a driver.
+What: /sys/bus/cxl/devices/decoderX.Y/qos_class
+Date: May, 2023
+KernelVersion: v6.5
+Contact: linux-cxl@vger.kernel.org
+Description:
+ (RO) For CXL host platforms that support "QoS Telemmetry" this
+ root-decoder-only attribute conveys a platform specific cookie
+ that identifies a QoS performance class for the CXL Window.
+ This class-id can be compared against a similar "qos_class"
+ published for each memory-type that an endpoint supports. While
+ it is not required that endpoints map their local memory-class
+ to a matching platform class, mismatches are not recommended and
+ there are platform specific side-effects that may result.
+
+
What: /sys/bus/cxl/devices/regionZ/uuid
Date: May, 2022
KernelVersion: v6.0